docs: def get_csr(self, bay_number=None):
          """
          Get an enclosure's Certificate Signing Request (CSR) that was generated by previous POST to the same URI.
  
          Args:
              bay_number: OA to retrieve the previously generated CSR.
  
          Returns:
              dict
          """
          uri = "{}/https/certificaterequest".format(self.data['uri'])
  
          if bay_number:
              uri += "?bayNumber=%d" % (bay_number)
  
          return self._helper.do_get(uri)